78 



A venomous snake, the Ela;ps disians, is common to tbis district and 



the Sonoran fauna. 



Some small mammals are confined to this region also. The genera of 



birds that do not range north of it are — 



Certhiola. 



Zenaeda ^ 



Oreopelia > Pigeons. 



Starnaenas j 



Bostrhamus ) r^ j_ 



^ , T > -Kaptores. 



Folyoorus ) 



Aramus ) .^ ^ 

 . , ^ . > Waders. 

 Auduoonia ) 



Phoenicop terus. 



Haliplana )„ 

 Anous ) 



The Louisianian district possesses the peculiarities of the austroripa- 

 rian fauna already pointed out, minus those of Florida and Texas. Of 

 Mammalia, the genera Alces, Mustcla, Jaculus, Arctomys, Fiber, and Condy- 

 lura are wanting, as well as the red-squirrel, Canada lynx, gray-rabbit, 

 etc. Its most remarkable birds are the nonpareil finch, ivory-billed wood- 

 pecker, parrakeet, etc., while its Mapsfulvius, or coral-snake, is one of the 

 most beautiful of the order. A large and dangerous rattlesnake is also 

 confined to it, viz, Gaudisona adamantea, and the well-known moccasin 

 Ancistrodon piscivorus does not range outside of its boundaries. A 

 species of the West Indian Dromiciis (serpents) has been found on the 

 Atlantic coast. 



V«. Species confined to the Louisianian district— 36 : (E confined to 

 the Eastern portion j W to the Western, as far as known). 



Tracliystomata. 



Pseudobranchus striatus. E. 



Proteida. 



Necturus punctatus. E. 



TJrodela. 



Amphiuma means. 

 Muraenopsis tridactyla. W. 

 Ambly stoma talpoideum. E. 

 Amblystomn cingulatum. E. 



